<div class="container"></div>

<style>
/* From Uiverse.io by liuyingmei  - Tags: simple, green, blue, pattern */
.container {
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    -135deg,
    yellow,
    pink 10px,
    green 10px,
    skyblue 20px
  );
}

</style>
    